tmutil is the command line tool to interact with your Time Machine backups. The graphical user interface is good in most of the cases, but not all, it’s a bit limited; when you need to […]
tmutil
Author: Laci
Docker Won’t Start After Update
I updated docker on CentOS 8 from docker-ce-3:19.03.13-3.el8.x86_64 to docker-ce-3:20.10.1-3.el8.x86_64 and failed to start after update. Oh no, now what? 🙂 Let’s see more details: Turned out the fix was to remove trusted.xml, or better […]
Happy Xmas
macOS WiFi 2.4/5GHz
In case you have the same (B)SSID for 2.4 and 5GHz but you want to force your Mac to one of them it can be easily done with Terminal. First scan the network then using […]
MikroTik Inter-VLAN Access
By default on MikroTik inter-VLAN communication is allowed. There is a chance this isn’t what you want to allow if you are using VLAN’s. This is how you can disable it: create firewall address lists […]
/var/cache/pkg
On FreeBSD /var/cache/pkg can use up a significant amount of space. The good news is the content of this directory is not required. However it is useful if you want to rollback to an older […]
Rest In Peace – Neil Spector, M.D
Flags were lowered to half-staff today across Duke for Neil Spector, MD, a nationally recognized physician-scientist, translational research leader, and oncology mentor who passed away on Sunday, June 14, 2020. He was 63. Original article on Duke […]
Sort Processes by Memory Usage
FreeBSD *Use zfs-stats to check how much is zfs using from your memory Linux ps -eo size,pid,user,command –sort -size | awk ‘{ hr=$1/1024 ; printf(“%13.2f Mb “,hr) } { for ( x=4 ; x<=NF ; […]
https://mikrotik…
… or how to enable www-ssl on MikroTik? By default on MikroTik devices only HTTP tcp/80 is enabled. The traffic going through this protocol is not encrypted and shouldn’t be used where authentication happens. RouterOS […]
yum history
On RHEL/CentOS, yum history is not well-known but is a nice way to undo package installs, including dependencies, or updates. Usage is self-explanatory. I provided some examples below: If you really want you can undo […]